CN107098894A - The heterocyclic radical propylene hydrazide derivative of 2 cyano group of N (2 thienyl) methylene 3 and its application - Google Patents

The heterocyclic radical propylene hydrazide derivative of 2 cyano group of N (2 thienyl) methylene 3 and its application Download PDF

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CN107098894A
CN107098894A CN201710487689.9A CN201710487689A CN107098894A CN 107098894 A CN107098894 A CN 107098894A CN 201710487689 A CN201710487689 A CN 201710487689A CN 107098894 A CN107098894 A CN 107098894A
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hydrogen
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CN107098894B (en
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徐志宏
杨建�
岳媛
严映坤
刘辉
高扬
唐孝荣
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Qidong Universal Gear Co ltd
Shanghai Ningjing Intellectual Property Agency Co ltd
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Xihua University
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Abstract

The present invention relates to heterocyclic Schiff base class compound and application thereof, the heterocyclic radical propylene hydrazide derivative of 2 cyano group of more particularly to N (2 thienyl) methylene 3 and its application.Present invention solves the technical problem that being to provide a kind of heterocyclic Schiff base class compound that can be used as antioxidant and agricultural insecticide, its structural formula is as shown in formula I.The present invention splices principle using bio-active group, heterocyclic compound is introduced into Schiff class compound, some novel structures, the reactive compound of superior activity or active lead compound are found that, so as to establish preferable basis for the initiative of novel antioxidant and insecticide.

Description

N- (2- thienyls) methylene -2- cyano group -3- heterocyclic radical propylene hydrazide derivatives and It is applied
Technical field
The present invention relates to heterocyclic Schiff base class compound and application thereof, more particularly to N- (2- thienyls) methylene -2- Cyano group -3- heterocyclic radical propylene hydrazide derivatives and its application.
Background technology
Antioxidant effectively can delay or suppress many materials, particularly biological big point of sugar, fat, protein, nucleic acid etc. The oxidation deterioration of son, quite varied application is suffered from many fields:(1) in terms of food processing, antioxidant can suppress Oxidation of Fat and Oils, prevents it from becoming sour, frequently as food oxydating resistance additive;(2) in life science and medical domain, antioxidant energy Interior free yl is removed, slows down the formation of peroxidation state, various diseases caused by prevention and treatment free radical improve machine Body immunocompetence, so as to protect health;(3) in chemical industrial field, antioxidant adds as the stability of chemical products Plus agent, the antioxygenic property of product is improved, so as to extend its service life.Because antioxidant is in industrial and agricultural production and daily life Irreplaceable effect is all played in work, therefore, the research and development of the efficient, antioxidant of economy, low toxicity have very Important meaning.
On the other hand, long-term a large amount of use of agricultural chemicals particularly insecticide not only pollutes environment, destroys the ecological balance, It also results in serious " 3R " (residual, resistance and pest resurgence) and " three cause " (carcinogenic, teratogenesis shape and mutagenesis) problem.This A little problems cause the mankind and widely paid close attention to, how to efficiently solve these problems be facing mankind it is one long-term and it is arduous Task.So, huge challenge is faced with agricultural chemicals, and in the case that the mankind be unable to do without agricultural chemicals, finds high to harmful organism Effect, to non-target organism safety, degradable in the environment and catabolite to human health and ecological environment security " environment and Humorous agricultural chemicals " or " environment friendly agricultural " focus into pesticide research and forward position.
Schiff refers to occur condensation reaction and containing for generating by primary amine and aldehydes or ketones>One class of C=N- structures has Machine compound, both can be isolated from natural products, can also be obtained by artificial synthesized method.Numerous studies table Bright, Schiff class compound suffers from extremely important in medical science, catalysis, analytical chemistry, corrosion and the field such as photochromic Effect.Meanwhile, Schiff class compound also has good bioactivity, for example, desinsection, antimycotic, antibacterium, anti- Cancer, anti parasitic, weeding etc..Therefore, in recent decades, people research and develop to it shows great interest, special It is not even more of great interest in the field such as biology, medicine, agricultural chemicals, and constantly has structure novelty, excellent performance, work Come out with unique, the environment-friendly kind of mode.
In recent years, during the research and development of bioactive compound, heterocyclic compound shows more and more important Effect.Because its selectivity is good, active high, consumption is few, toxicity is low and special in harmful organism biochemical reactions Property and as research main body.Wherein, the compound such as furans, thiophene, pyridine, pyrimidine, pyrazoles, imidazoles, thiazole, triazole, because not The disconnected attention for emerging novel agents that some have an epoch-marking significance and causing people, also grinds as bioactive compound The focus studied carefully and forward position.
Up to the present, it yet there are no what heterocyclic Schiff base class compound was used as antioxidant and agricultural insecticide Report.
The content of the invention
Present invention solves the technical problem that being to provide a kind of heterocycle that can be used as antioxidant and agricultural insecticide Schiff class compound.
N- (2- thienyls) methylene -2- cyano group -3- heterocyclic radical propylene hydrazide derivatives of the present invention, its structural formula is such as Shown in formula I:
Wherein, R1For
R2For hydrogen or halogen;
R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
It is preferred that, R1ForR2For Hydrogen;R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
It is furthermore preferred that R1ForR2For hydrogen.
It is preferred that, R1ForR2For halogen Element;R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
It is furthermore preferred that R1ForR2For Bromine;R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
It is further preferred that R1ForR2For bromine.
The present invention also provides application of the compounds of this invention in antioxidant is prepared.
The compound of the present invention, with excellent antioxygenic property, can be used as antioxidant.
The present invention also provides application of the compounds of this invention in preventing and treating agricultural pests.
The compound of the present invention, it is also possible to make insecticide, to the agricultural evil such as mythimna separata, corn borer, Tetranychus cinnabarinus, Culex pipiens pallens Worm has preferable cytotoxicity.It is therefore preferable that the agricultural pests are mythimna separata, corn borer, Tetranychus cinnabarinus or Culex pipiens pallens.
The present invention splices principle using bio-active group, and heterocyclic compound is introduced into Schiff class compound, sends out Some structures novel, the reactive compound of superior activity or active lead compound are showed, so as to be novel antioxidant and kill Preferable basis has been established in the initiative of worm agent.
Embodiment
The present invention provides compound of the structural formula as shown in formula I:
Wherein, R1For
R2For hydrogen or halogen;
R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
It is preferred that, R1ForR2For hydrogen; R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.It is furthermore preferred that R1For R2For hydrogen.Further preferably , R1ForR2For hydrogen.
It is another preferred, R1For R2For halogen;R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.It is furthermore preferred that R1ForR2For bromine;R3For hydrogen, C1-C4 alkyl Or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.It is further preferred that R1For R2For bromine.It is furthermore preferred that R1 ForR2For bromine.
The following is currently preferred structural formula.
The compound of the present invention, can be obtained using conventional preparation method.
The compound of the present invention, with excellent antioxygenic property, can be used as antioxidant.
The compound of the present invention, it is also possible to make insecticide, to the agricultural evil such as mythimna separata, corn borer, Tetranychus cinnabarinus, Culex pipiens pallens Worm has preferable cytotoxicity.
The embodiment of the present invention is further described with reference to embodiment, not therefore by present invention limit System is among described scope of embodiments.
The synthesis of the compound 1~9 of embodiment 1
Composition principle:
1st, the synthesis of compound 1
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure addition Funnel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, with steaming Distilled water is washed till neutrality repeatedly.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol furfural to be added in 5mL dichloromethane, fully after dissolving, use constant pressure funnel It is added dropwise in three-necked bottle, reacts 1h, terminal is detected with thin layer silica gel plate (TLC).After reaction completely, reaction solution is poured into In 500mL beakers, 300mL petroleum ether and stirring is added, there is solid matter precipitation.After its suction filtration and drying, acetonitrile is used:Nothing Water-ethanol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3423,2207,1685,1612,1557,937;1H NMR(300MHz, DMSO-d6)δ(ppm):11.77(1H,s),8.66(1H,s),8.16(1H,s),8.07(1H,s),7.68(1H,s),7.48 (1H, s), 7.45 (1H, d, J=2.4Hz), 7.14 (1H, s), 6.84 (1H, d, J=1.5Hz);13C NMR(75MHz,DMSO- d6)δ(ppm):158.28(1C),149.40(1C),148.79(1C),144.69(1C),139.00(1C),136.98(1C), 131.98(1C),129.84(1C),128.28(1C),122.70(1C),116.15(1C),114.37(1C),100.00(1C); HRMS(ESI)m/z:Calcd for C13H10N3O2S[M+H]+:272.0488,Found:272.0488.
2nd, the synthesis of compound 2
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure addition Funnel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, with steaming Distilled water is washed till neutrality repeatedly.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol 5 methyl furfural to be added in 5mL dichloromethane, fully after dissolving, dripped with constant pressure Liquid funnel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, reaction solution is fallen Enter in 500mL beakers, add 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, acetonitrile is used: Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3441,2208,1672,1604,1543,941;1H NMR(400MHz, DMSO-d6)δ(ppm):11.67 (1H, s), 8.66 (1H, s), 7.97 (1H, s), 7.70 (1H, d, J=4.4Hz), 7.48 (1H, D, J=3.2Hz), 7.39 (1H, d, J=3.2Hz), 7.15 (1H, t, J=4.0Hz), 6.53 (1H, d, J=3.6Hz), 2.44 (3H,s);13C NMR(100MHz,DMSO-d6)δ(ppm):159.89(1C),158.66(1C),147.75(1C),144.56 (1C),139.19(1C),136.70(1C),131.97(1C),129.86(1C),128.37(1C),124.86(1C),116.49 (1C),111.60(1C),97.81(1C),14.35(1C);HRMS(ESI)m/z:Calcd for C14H12N3O2S[M+H]+: 286.0645,Found:286.0641.
3rd, the synthesis of compound 3
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure addition Funnel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, with steaming Distilled water is washed till neutrality repeatedly.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, by reaction solution Pour into 500mL beakers, add 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, second is used Nitrile:Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3433,2207,1682,1581,1551,931;1H NMR(300MHz, DMSO-d6)δ(ppm):11.79 (1H, s), 8.66 (1H, s), 8.51 (1H, s), 8.13 (1H, d, J=4.2Hz), 7.96 (1H, s),7.68(1H,s),7.49(1H,s),7.33(1H,s),7.14(1H,s);13C NMR(75MHz,DMSO-d6)δ(ppm): 158.29(1C),144.92(1C),144.65(1C),138.98(1C),138.84(1C),136.25(1C),135.93(1C), 131.98(1C),129.85(1C),129.02(1C),128.28(1C),116.60(1C),100.79(1C);HRMS(ESI)m/ z:Calcd for C13H10N3OS2[M+H]+:288.0260,Found:288.0255.
4th, the synthesis of compound 4
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure addition Funnel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, with steaming Distilled water is washed till neutrality repeatedly.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.0.01mol 2- furylacroleins are taken to be added in 5mL dichloromethane, fully after dissolving, with perseverance Pressure dropping funel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, it will react Liquid is poured into 500mL beakers, adds 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, use Acetonitrile:Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3425,2210,1678,1596,1551,926;1H NMR(400MHz, DMSO-d6)δ(ppm):11.78 (1H, s), 8.65 (1H, s), 8.09 (1H, d, J=12.0Hz), 7.97 (1H, s), 7.71 (1H, d, J=4.4Hz), 7.50 (1H, s), 7.44 (1H, d, J=14.8Hz), 7.16 (1H, s), 7.04-6.94 (2H, m), 6.72(1H,dd,J1=1.6Hz, J2=1.6Hz);13C NMR(100MHz,DMSO-d6)δ(ppm):158.13(1C),152.46 (1C),151.59(1C),147.36(1C),144.58(1C),139.15(1C),133.84(1C),132.07(1C),129.93 (1C),128.38(1C),120.79(1C),117.54(1C),115.64(1C),113.89(1C),105.55(1C);HRMS (ESI)m/z:Calcd for C15H12N3O2S[M+H]+:298.0645,Found:298.0640.
5th, the synthesis of compound 5
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol 5- bromothiophene -2- formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, Neutrality is washed till repeatedly with distilled water.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol furfural to be added in 5mL dichloromethane, fully after dissolving, use constant pressure funnel It is added dropwise in three-necked bottle, reacts 1h, terminal is detected with thin layer silica gel plate (TLC).After reaction completely, reaction solution is poured into In 500mL beakers, 300mL petroleum ether and stirring is added, there is solid matter precipitation.After its suction filtration and drying, acetonitrile is used:Nothing Water-ethanol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3432,2215,1687,1616,1554,931;1H NMR(400MHz, DMSO-d6)δ(ppm):11.86(1H,s),8.58(1H,s),8.19(1H,s),8.08(1H,s),7.47(1H,s),7.36 (1H, s), 7.30 (1H, d, J=2.8Hz), 6.87 (1H, dd, J1=1.6Hz, J2=1.6Hz);13C NMR(100MHz, DMSO-d6)δ(ppm):158.44(1C),149.58(1C),148.90(1C),143.95(1C),141.03(1C),137.19 (1C),132.58(1C),131.83(1C),122.86(1C),116.19(1C),115.80(1C),114.50(1C),100.06 (1C);HRMS(ESI)m/z:Calcd for C13H9BrN3O2S[M+H]+:349.9593,Found:349.9592.
6th, the synthesis of compound 6
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol 5- bromothiophene -2- formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, Neutrality is washed till repeatedly with distilled water.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol 5 methyl furfural to be added in 5mL dichloromethane, fully after dissolving, dripped with constant pressure Liquid funnel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, reaction solution is fallen Enter in 500mL beakers, add 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, acetonitrile is used: Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Orange crystal;IR(KBr)νmax(cm-1):3445,2206,1672,1603,1541,971;1H NMR(400MHz, DMSO-d6)δ(ppm):11.75 (1H, s), 8.57 (1H, s), 7.97 (1H, s), 7.39 (1H, s), 7.34 (1H, d, J= 3.6Hz), 7.28 (1H, d, J=3.2Hz), 6.54 (1H, d, J=3.2Hz), 2.44 (3H, s);13C NMR(100MHz,DMSO- d6)δ(ppm):159.95(1C),158.70(1C),147.73(1C),143.65(1C),141.10(1C),136.78(1C), 132.43(1C),131.76(1C),124.94(1C),116.42(1C),115.71(1C),111.62(1C),97.67(1C), 14.36(1C);HRMS(ESI)m/z:Calcd for C14H11BrN3O2S[M+H]+:363.9750,Found:363.9750.
7th, the synthesis of compound 7
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol 5- bromothiophene -2- formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, Neutrality is washed till repeatedly with distilled water.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol thiophene -2-formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, by reaction solution Pour into 500mL beakers, add 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, second is used Nitrile:Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Orange powder;IR(KBr)νmax(cm-1):3433,2209,1687,1584,1557,971;1H NMR(400MHz, DMSO-d6)δ(ppm):11.88 (1H, s), 8.57 (1H, s), 8.51 (1H, s), 8.17 (1H, d, J=4.8Hz), 7.98 (1H, s),7.37-7.31(3H,m);13C NMR(100MHz,DMSO-d6)δ(ppm):158.48(1C),145.12(1C),143.89 (1C),141.01(1C),139.01(1C),136.34(1C),136.14(1C),132.58(1C),131.83(1C),129.15 (1C),116.66(1C),115.80(1C),100.84(1C);HRMS(ESI)m/z:Calcd for C13H9BrN3OS2[M+H ]+:365.9365,Found:365.9365.
8th, the synthesis of compound 8
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol 5- bromothiophene -2- formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, Neutrality is washed till repeatedly with distilled water.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.Take 0.01mol 3- pyridine carboxaldehydes to be added in 5mL dichloromethane, fully after dissolving, dripped with constant pressure Liquid funnel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, reaction solution is fallen Enter in 500mL beakers, add 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, acetonitrile is used: Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3445,2230,1663,1614,1551,967;1H NMR(400MHz, DMSO-d6)δ(ppm):12.07 (1H, s), 9.05 (1H, s), 8.77 (1H, d, J=4.4Hz), 8.59 (1H, s), 8.45 (1H, D, J=8.0Hz), 8.34 (1H, s), 7.67 (1H, dd, J1=4.8Hz, J2=5.2Hz), 7.41 (1H, d, J=3.6Hz), 7.32 (1H, d, J=3.6Hz);13C NMR(100MHz,DMSO-d6)δ(ppm):158.09(1C),153.13(1C),151.86 (1C),149.24(1C),144.38(1C),140.81(1C),136.52(1C),132.99(1C),131.93(1C),128.51 (1C),124.68(1C),116.11(1C),116.06(1C),107.97(1C);HRMS(ESI)m/z:Calcd for C14H10BrN4OS[M+H]+:360.9753,Found:360.9756.
9th, the synthesis of compound 9
(1) synthesis of intermediate
0.01mol cyano acethydrazide is placed in three-necked bottle, 15mL dichloromethane is added and makees solvent, 3mL acetic acid is urged Stirred under agent, normal temperature.Take 0.01mol 5- bromothiophene -2- formaldehyde to be added in 5mL dichloromethane, fully after dissolving, use constant pressure Dropping funel is added dropwise in three-necked bottle, reacts 5h, and terminal is detected with thin layer silica gel plate (TLC).Place reaction liquid into beaker, Neutrality is washed till repeatedly with distilled water.Divide after liquid and vacuum distillation, suction filtration and dry, obtain intermediate.
(2) synthesis of target compound
Take intermediate 0.01mol to be placed in three-necked bottle, add 15mL absolute ethyl alcohols and make solvent, 3mL triethylamines make catalyst, Stirred under conditions of 50 DEG C.0.01mol 2- furylacroleins are taken to be added in 5mL dichloromethane, fully after dissolving, with perseverance Pressure dropping funel is added dropwise in three-necked bottle, reacts 1h, and terminal is detected with thin layer silica gel plate (TLC).After reaction completely, it will react Liquid is poured into 500mL beakers, adds 300mL petroleum ether and stirring, there is solid matter precipitation.After its suction filtration and drying, use Acetonitrile:Absolute ethyl alcohol=1:10 mixed solution is recrystallized to crude product, obtains target product.
Yellow powder;IR(KBr)νmax(cm-1):3446,2213,1688,1624,1557,929;1H NMR(400MHz, DMSO-d6)δ(ppm):11.85 (1H, s), 8.56 (1H, s), 8.09 (1H, d, J=11.6Hz), 7.97 (1H, d, J= 1.2Hz), 7.44 (1H, d, J=14.8Hz), 7.36 (1H, s), 7.30 (1H, d, J=3.2Hz), 7.04-6.93 (2H, m), 6.72(1H,dd,J1=1.6Hz, J2=1.6Hz);13C NMR(100MHz,DMSO-d6)δ(ppm):152.59(1C),151.59 (1C),147.46(1C),143.69(1C),141.04(1C),134.01(1C),132.61(1C),131.84(1C),120.74 (1C),117.66(1C),115.81(1C),115.60(1C),113.94(1C),105.42(1C),99.99(1C);HRMS (ESI)m/z:Calcd for C15H11BrN3O2S[M+H]+:375.9750,Found:375.9753.
The measure of the compounds of this invention insecticidal activity of test example 1
1. for examination insect
The instar larvae of mythimna separata 3, the instar larvae of corn borer 3, Tetranychus cinnabarinus is into mite, the instar larvae of Culex pipiens pallens 3, they be it is indoor often The sensitive strain that year for many generations raises.
2. the assay method of mythimna separata
Testing sample is dissolved in dimethyl sulfoxide and certain concentration is diluted to the 0.1% Tween-80 aqueous solution, to be not added with The corresponding solution of testing sample is negative control.Maize leaf is cut into 2 × 4cm segment, taken after soaking 5s in solution to be measured Open, bottom is put into after draining and is covered with the culture dish of filter paper (6cm), access 15 first 3 instar larvaes, then it is 22 to place it in temperature ~24 DEG C, relative humidity is 60%, and light application time is 14:Continue to raise in 10h laboratory, record death condition after 24h, often One experiment is repeated 3 times, and calculates corrected mortality with following equation:
3. the assay method of corn borer
Testing sample is dissolved in dimethyl sulfoxide and certain concentration is diluted to the 0.1% Tween-80 aqueous solution, to be not added with The corresponding solution of testing sample is negative control.The tender fringe of corn and tender bract are cut into segment, taken after soaking 10s in solution to be measured Open, be put into after draining in a diameter of 6cm, high 9cm glass culture dish, 15 sizes of access are neat, the health age of corn borer 3 children Worm, then temperature is placed it in for 22~24 DEG C, relative humidity is 60%, and light application time is 14:Continue to raise in 10h laboratory Support, death condition is recorded after 24h, each experiment is repeated 3 times, and corrected mortality is calculated with following equation:
4. the assay method of Tetranychus cinnabarinus
Testing sample is dissolved in dimethyl sulfoxide and certain concentration is diluted to the 0.1% Tween-80 aqueous solution, to be not added with The corresponding solution of testing sample is negative control.Gather the big Kidney bean leaf of insect density, carefully choose make health into mite (30~ 50) stay on blade face, taken away after the Kidney bean leaf with worm is immersed into solution 5s to be measured, the training that bottom is covered with filter paper is put into after draining Support in ware (6cm), be placed on temperature for 22~24 DEG C, relative humidity is 60%, and light application time is 14:10h laboratory relaying It is continuous to raise, death condition is recorded after 24h, each experiment is repeated 3 times, and corrected mortality is calculated with following equation:
5. the assay method of Culex pipiens pallens
Using the method for world health organisation recommendations, testing sample is dissolved in dimethyl sulfoxide and with 0.1% Tween-80 water Solution is diluted to certain concentration, to be not added with the corresponding solution of testing sample as negative control.Every kind of solution 1mL is taken, is added respectively Enter into the 118mL wax dixie cups equipped with 99mL distilled water and 20 instar larvaes of Culex pipiens pallens 3, these dixie cups are placed on temperature For 22~24 DEG C, relative humidity is 60%, and light application time is 14:Continue to raise in 10h laboratory, dead feelings are recorded after 24h Condition, each experiment is repeated 3 times, and calculates corrected mortality with following equation:
6. result of the test
The desinsection of the compounds of this invention the results are shown in Table 1.
Table 1
a:The average value of three repetitions.
Understand that the compounds of this invention has preferable cytotoxicity to these insects from upper table 1.
The measure of the antioxygenic property of the compounds of this invention of test example 2
1. instrument and reagent
721B type spectrophotometers, 1,1- diphenyl -2- picryls hydrazine (DPPH), 95% ethanol.
2. determination step
(1) preparation of DPPH and sample solution
0.0130 gram of DPPH is accurately weighed with assay balance, is settled to 95% ethanol in 500mL volumetric flasks, obtains concentration For 26mg/L solution;0.0100g testing samples accurately are weighed, is settled to 95% ethanol in 100mL volumetric flasks, obtains concentration For 100mg/L sample solution.
(2) 4mL DPPH solution and 1mL95% ethanol solutions is sequentially added in 10mL conical flasks, stable reaction is mixed Afterwards, using 95% ethanol as reference solution, its absorbance is determined at λ max=518nm, A is designated as0
(3) 4mL DPPH solution and 1mL solution to be measured is sequentially added in 10mL conical flasks, shakes up, reacts at room temperature After 40min is stable, using 95% ethanol as reference solution, its absorbance is determined at wavelength X max=518nm, A is designated asS.Often One experiment in triplicate, and with following equation calculate antioxidant free radical scavenging activity Y (%):
3. the measurement result of antioxygenic property
Table 2 is when concentration is 100mg/L, clearance rate of the compound to DPPH free radicals
a:The average value of three repetitions.
It was found from upper table 2, the compounds of this invention to the clearance rate of DPPH free radicals all more than 82%, i.e., they have compared with Good antioxygenic property.

Claims (10)

1. compound of the structural formula as shown in formula I:
Wherein, R1For
R2For hydrogen or halogen;
R3For hydrogen, C1-C4 alkyl or halogen;R4For hydrogen, C1-C4 alkyl or halogen;X is O or S.
2. compound according to claim 1, it is characterised in that:R2For hydrogen.
3. compound according to claim 2, it is characterised in that:R1For
4. compound according to claim 1, it is characterised in that:R2For halogen.
5. compound according to claim 4, it is characterised in that:R2For bromine.
6. compound according to claim 5, it is characterised in that:R1For
7. compound according to claim 1, it is characterised in that its structural formula is as follows:
8. application of the compound described in any one of claim 1~7 in antioxidant is prepared.
9. application of the compound in preventing and treating agricultural pests described in any one of claim 1~7.
10. application of the compound according to claim 9 in preventing and treating agricultural pests, it is characterised in that:The agricultural evil Worm is mythimna separata, corn borer, Tetranychus cinnabarinus or Culex pipiens pallens.
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